I asked the mechanic to check the 'oil'. [=to make sure that there was enough oil to make the car engine run smoothly]
The dressing is made with 'oil', vinegar, and a pinch of herbs.
He works mostly 'in oils'. [=he mostly uses oil paints]
(..) while Charlie deals with this whole hornet/wasp situation? Yeah. Oh. Oh, I'm a bad boy? I'm a bad boy? Put some vegetable oil on it. That'll make you feel better. Okay. Bye, sexy. Ohh. Who was that? That's my booty call. We're into some really weird food fetish stuff. (..)2009 TvShow: It's Always Sunny in Philadelphia Title: The Waitress Is Getting Married Season: 5 Episode 5